richardson



(No Model.) 2 Sheets-Sheet 1.

W. s. RICHARDSON.

PUMP.

No. 430.436. Patented June 17, 1890-.

(No Model.) 2 Sheets-Sheet 2.

W. S. RICHARDSON. PUMP.

No. 430,436. Patented June 17, 1890;

5; water.

car

o FfGl 'IIIIIIIIIIII/IIIIIII I VIIII'IlIiIIl/II/II Ill I m: uonms PETERS1:0 mow-mum, mam-mum, u. c.

UNITED STATES IVINFIELD S. RICHARDSON,

PATENT OFFICE.

OF CAMDEN, NEW' JERSEY.

PUMP.

SPECIFICATION forming part of Letters Patent No. 430,436, dated J' 1111617, 1890. Application filed August 1 1889. Serial No. 320,713- (Nomodel.)

To aZZ whom it may concern:

Be it known that I, WINFIELD S. RICHARD- SON, a citizen of the UnitedStates, and a resident of Camden, New Jersey, have invented certainImprovements in Pumps, of which the following is a specification.

The object of my invention is to impart short and powerful movementsiothe plungers of a duplex pump from a single crosshead having a movementof greater extent than the movement of the plungers, but having acorrespondingly less degree of power applied to it.

In the accompanying drawings, Figure l is a front elevation of a duplexpump and plunger-operating mechanism therefor in accordance with myinvention. Fig. 2 is an end view of the same. Figs. 3, 4, and 5 arediagrams illustrating the action of said mechanism; and Fig. 6 is an endview of my invention as applied to a quadruplex pump for raising andforcing water from deep wells.

In Fig. 1, A represents the pump-barrel, of which a is the suction-pipe,and Z) the discharge-pipe, both of which are provided with ordinarycheck-valves a and 1), opening upwardly, these pipes communicating withthe pump-barrel at or about the longitudinal center of the same. Thebarrel is of uniform bore throughout and has two plungers B B, each ofwhich is connected bya link 01 to one arm of a lever D, hung to a framef on the top of the pn mp-barrel, the upper end of each lever beingconnected by a link g to a cross head or slide F, guided on a verticalstandard F, the mid-point of which is in a line drawn through theconnections of the links 9 with the upper ends of the levers D, theextremes of movement being to a like extent above and below this line.The'consequence of this is that when the slide F is at one limit of itsmovement the plungers B of the pump are fully withdrawn, as shown inFig. 3, while when the slide reaches the mid-position the plungers arefully projected, as in Fig. 4, and when it reaches the opposite extremeposition are again fully withdrawn, as in Fig. 5, so that eachback-and-forth stroke of the cross-head or slide effects two strokes ofeach plunger, these strokes being of course less in extent than thestroke of the slide, but being of much greater power, owing to thetoggle or knee joint action of the links g, connecting theoperating-levers D with the slide F.

In applying my invention to a qua-druplex pump two of the duplex-pumpbarrels A A forked at the lower ends, so as to be connected to theplungers of each pump-barrel, as shown in Fig. 6, for instance. In thiscase I prefer to use one of the pumps as an air-pump and the other as awater-pump, the pump being in this case especially adapted for raisingwater from deep wells and for forcing the water so raised to any desiredheight or for any distance, one pump A receiving air through its valvedinlet-pipe a and discharging this air through the valved outlet-pipe 17into the cased well 03, or into a tube extending down into the well, sothat the air will act upon the surface of the water and cause it to risein a pipe 3 extending to the bottom of the well and communicating at itsupper end with the inletpipe Ct of the pump A, which thus acts as aforcing-pump and delivers the Water through the outlet branch 1).

Having thus described my invention, I claim and desire to secure byLetters P'atent The combination of the duplex-pump barrel and itsplungers with operating mechanism for said plungers, comprising theopposite levers, the slide or cross-head, a connection between one endof each lever and its plunger, and links connecting the opposite ends ofthe levers to the slide or cross-head, substantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

W INFIELD- S. RICHARDSON.

Witnesses:

J NO. E. PARKER, WILLIAM D. OoNNER.

are placed side by side, and the levers D are

